Electron tube mounting



ELECTRON TUBE MOUNTING Filed Feb. 11, 1958 2 Sheets-Sheet l fiz 5 0212931 Feb. 13, 1940. E. ZIGANKE ELECTRON TUBE MOUNTING Filed Feb. 11,1938 2 Sheets-Sheet 2 g .52 V012 for,

I UNITED STATES PATENT OFFICE 2,189,874 ELECTRON TUBE MOUNTING ErnstZiganke, Berlin, Germany, assignor to C. Lorenz Aktiengesellschaft,Berlin-Tempelhof, Lorenzweg, Germany, a company Application February 11,1938, Serial No. 190,047 In Germany February 11-, 1937 4 Claims. (Cl.250-27.5)

Electronic tubes are usually provided with frequency stage the wireinterconnecting the pins or contact members fitted to their bases ingrid and oscillatory circuit thereof, and also the order to engage holesor springs of a socket or wire interconnecting the anode and anodeoscillaholder. Therefore, in order to remove such a tory circuit, shouldbe of the least possible length.

5 tube from its holder, the tube is withdrawn there- In order to achievethis the leads I8, I9 to the grid 5 from in the direction of its axis ifthis is "normal and anode have been arranged in well-known to theholder. Hence it is not possible to armanner at the ends of tube E. Theoscillarange .any wall located immediately above the ry c cui s of Su ah eq y Stage are tube, because such wall would prevent the tube ned o eaot e by a Wall designated I 10 from being easily replaced by another. inaccordance with Figs. 1 to 4, the tube thus 10 In devices as provided bythe invention the being arranged to interconnect the two chamtube isinserted or ithdrawn by o in it i a bers I5, I6 formed with the aid ofwall I and in direction parallel to the holder, as will be underwhichthe oscillatoryv circuits a disposed- It stood from the followingdescription, reference will thus be advantageous to have the tube Ebeing had to the accompanying drawings, in supported by wall I, and itis the novel arrange- 15 which ment which is particularly useful in thisregard Fig. 1v is a partially sectioned elevation of one ince it p vi fr in r in r mov n the embodiment of the invention, Fig. 2 a plan to tubein a direction parallel with wall I. Insert- Fig. 1; Fig. 3 is apartially sectioned elevation of log or withdrawing tube E in its axialdirection is go another embodiment, Fig. 4 a plan to Fig. 3; Fig. notpossible because the members of the said 5 is a sectional viewillustrating a mode of applioscillatory circuits, especially the @0115I3, I4 cation of the arrangement represented in Figs. 1 thereof, must bein close proximity to the leads and 2, Fig, 6 shows a, section on line6. 6, of Fig. IB, I9, to which they are connected. In addi- 5. tion, bymoving the tube in a direction parallel In the arrangement shown inFigs. 1 and 2 th to wall I touching of the members of the circuits, 25electronic tube E is fixed by it base e to a, plate such as the coilsI3, I4, for instance is avoided.

4 which is slidable in two guides 2 of insulating T e t e E S o n iFigS- 5 d 6 by W y Of material. These e fastened to a, plate I byexample has a rectangular bead e in its centre screws 3. Plate I may bethe bottom plate or an P s bead COrrespOnding 0 e b e 6 intermediatewall of some casing or cabinet. r p nt d in Fi s-1 d s in other pa 30Base e is in the shape of a square or rectangle u s e arrangement cl edin gS- v and at two opposite sides carries contacts 5 which and 6 is quiSimilar to t S Wn in -'5. 1 are in engagement with contact springs 6fitted and 2, as will be r i y e lik p r s ein to the guides 2 andformed with soldering tabs I. denoted by like reference characters.Slide plate Plate I may be of suitable length and has a thumb fix o d ismpar tively lon i rder 35 recess I7. to avoid touching the tube E orother operative In the arrangement represented in Figs. 3 and Parts Wreplacing i y a ther tube or With- 4 the base e of tube E is itself inengagement drawin it for some other son. Tube E ex- 'with the guides 2,plate 4, Figs. 1 and 2, thus tends through a slot 9 provided in wall I.This being dispensed with. The guides 2 are arran ed slot is covered bythe metal plate 4, the screen- 40 to form part of an insulating body I0which may s effected y Well I thus not being impaired by be moulded ordie-cast. The contacts 5 here are Slot 9- he grid and anode leads I8, I9are fitted to the lower side of foot 6 while the conengaged b y sp s fied to the ends of the tact springs 6 are mounted in the base portion ofC s The mOde 0f melmting t ese coils body III, the soldering tabs Ireaching through is not shown in the drawings, being left to the 45 anaperture 9 of plate I. The novel arrangement designer of the apparatus.Such iS the case also will be of special advantage in connection with asregards the rotatable plate condensers which devices intended for shortor ultra-short waves. in a well-known manner are connected in parallelFigs. 5 and 6 relate to a device of this kind. In With the coils I3, I4.

5 the case of these devices the interconnectors of What is claimed is:parts traversed by high frequency currents 1. An arrangement accordingto claim 4, should be as short as ever possible, because such whereinthe guide means of the holder has two interconnectors have an inductancethat regrooves adapted to receive the guide means of quiresconsideration whenever short waves are the electronic tube.

concerned. For instance, in the case of a high 2. An arrangementaccording o claim 4. 55

wherein the guide means of the holder is a moulded insulating bodyhaving two grooves adapted to receive the guide means of the electronictube.

gated supporting member fixed to said tube ad'- jacent to the centerthereof and having two guiding means extending perpendicularly withrespect to the axis of said tube, a holder having cooperating stationaryguiding means and cooperating contacts on said means first and secondmentioned positioned to make contact and complete electric circuits tosaid tube when said tube is placed in position by sliding saidsupporting member into said' holder with said' guiding means first andsecond mentioned in engagement said supporting member having a hand-gripportion remote from said center portion whereby said supporting membercan be inserted in said holder. 1

ERNST ZIGANKE.

